EP 1674430 B1 20090304 - Apparatus for the treatment of wastewater and process using it
Title (en)
Apparatus for the treatment of wastewater and process using it
Title (de)
Vorrichtung zur Behandlung von Abwasser und Verfahren das sie verwendet
Title (fr)
Dispositif d'épuration d'eaux usées et procédé mettant en oeuvre le dispositif
Publication
Application
Priority
- EP 04293129 A 20041224
- EP 05292785 A 20051223
Abstract (en)
[origin: EP1674430A1] The granulometry: of the C2 layer is lower than the C1 layer; C3 is identical or higher than the C1 layer; C4 layer is higher than C3; and C5 layer is higher than C4. The granulometry of C1, C2, C4 and C5 layers are 1/10 mm, 0.1/6 mm, 15/25 mm and 30/60 mm respectively. The C2 layer is composed of sand or analogue. The C1, C4 and C5 layers are composed of gravels, rollers or analogues. The air or oxygen is diffused by communicating ventilator or compressor with atmosphere through chimney. The oxygen is diffused through the interface between the C1 and C2 layers. The thickness of the C1 and C2 layers are 0.2-0.6 m and 0.15-0.4 m respectively. The thickness of the C3 and C4 layers is 0.1-0.4 m. The surface of the device is planted reeds. The medium for allowing air or oxygen is selected from an agricultural drain, road drain, slotted or bored tube, hollow box and honeycomb structure and provided with the drainage medium of excess water towards a drainage network of the device. Independent claims are also included for: (1) purification station; and (2) wastewater treatment.
IPC 8 full level
CPC (source: EP)
C02F 3/04 (2013.01); C02F 3/327 (2013.01); Y02W 10/10 (2015.05); Y02W 10/37 (2015.05)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 05292785 A 20051223